@article{10_4153_CJM_1996_009_9,
     author = {Rosen, Lon},
     title = {Positive {Powers} of {Positive} {Positive} {Definite} {Matrices}},
     journal = {Canadian journal of mathematics},
     pages = {196--209},
     year = {1996},
     volume = {48},
     number = {1},
     doi = {10.4153/CJM-1996-009-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1996-009-9/}
}